config/lyxinclude.m4

   1 dnl Some useful functions for LyXs configure.in                 -*- sh -*-
   2 dnl Author: Jean-Marc Lasgouttes (Jean-Marc.Lasgouttes@inria.fr)
   3 dnl         Lars Gullik Bjønnes (larsbj@lyx.org)
   4 dnl         Allan Rae (rae@lyx.org)
   5
   6 dnl Compute the default build type from AC_PACKAGE_VERSION at autoconf time.
   7 m4_define([LYX_BUILD_TYPE], [m4_bmatch(AC_PACKAGE_VERSION,
   8     [dev], [development],
   9     [pre\|alpha\|beta\|rc], [prerelease],
  10     [release])])
  11
  12
  13 dnl Usage LYX_CHECK_VERSION   Displays version of LyX being built and
  14 dnl sets variable "build_type"
  15 AC_DEFUN([LYX_CHECK_VERSION],[
  16 echo "configuring LyX version" AC_PACKAGE_VERSION
  17
  18 AC_MSG_CHECKING([for build type])
  19 lyx_devel_version=no
  20 lyx_prerelease=no
  21 AC_ARG_ENABLE(build-type,
  22   AC_HELP_STRING([--enable-build-type=STR],[set build type to rel(ease), pre(release), dev(elopment), prof(iling), or gprof (default: LYX_BUILD_TYPE)]),
  23   [case $enableval in
  24     dev*) build_type=development;;
  25     pre*) build_type=prerelease;;
  26     prof*)  build_type=profiling;;
  27     gprof*) build_type=gprof;;
  28     rel*) build_type=release;;
  29     *) AC_MSG_ERROR([bad build type specification \"$enableval\". Please use one of rel(ease), pre(release), dev(elopment), prof(iling), or gprof]);;
  30    esac],
  31   [build_type=LYX_BUILD_TYPE])
  32 AC_MSG_RESULT([$build_type])
  33 lyx_flags="$lyx_flags build=$build_type"
  34 case $build_type in
  35     development) lyx_devel_version=yes
  36                  LYX_DATE="not released yet" ;;
  37     prerelease) lyx_prerelease=yes ;;
  38 esac
  39
  40 AC_SUBST(lyx_devel_version)
  41 ])
  42
  43
  44 dnl Define the option to set a LyX version on installed executables and directories
  45 dnl
  46 dnl
  47 AC_DEFUN([LYX_VERSION_SUFFIX],[
  48 AC_MSG_CHECKING([for version suffix])
  49 dnl We need the literal double quotes in the rpm spec file
  50 RPM_VERSION_SUFFIX='""'
  51 AC_ARG_WITH(version-suffix,
  52   [AC_HELP_STRING([--with-version-suffix@<:@=STR@:>@], install lyx files as lyxSTR (default STR: -AC_PACKAGE_VERSION))],
  53   [if test "x$withval" = "xyes";
  54    then
  55      withval="-"AC_PACKAGE_VERSION
  56      ac_configure_args=`echo "$ac_configure_args" | sed "s,--with-version-suffix,--with-version-suffix=$withval,"`
  57    fi
  58    AC_SUBST(version_suffix,$withval)
  59    RPM_VERSION_SUFFIX="--with-version-suffix=$withval"])
  60 AC_SUBST(RPM_VERSION_SUFFIX)
  61 AC_SUBST(program_base_name,"lyx")
  62 AC_MSG_RESULT([$withval])
  63 ])
  64
  65
  66 dnl Check whether to configure for Qt5. Default is Qt4.
  67 dnl
  68 AC_DEFUN([LYX_CHECK_QT5],[
  69 AC_MSG_CHECKING([whether Qt5 is requested])
  70 AC_ARG_ENABLE([qt5],
  71   [  --enable-qt5            use Qt5 for building],
  72   USE_QT5=$enableval, USE_QT5=no)
  73 AC_MSG_RESULT([$USE_QT5])
  74 AC_SUBST([USE_QT5])
  75 ])
  76
  77
  78 dnl Usage: LYX_WARNING(message)  Displays the warning "message" and sets the
  79 dnl flag lyx_warning to yes.
  80 AC_DEFUN([LYX_WARNING],[
  81 lyx_warning_txt="$lyx_warning_txt
  82 == $1
  83 "
  84 lyx_warning=yes])
  85
  86
  87 dnl Usage: LYX_LIB_ERROR(file,library)  Displays an error message indication
  88 dnl  that 'file' cannot be found because 'lib' may be uncorrectly installed.
  89 AC_DEFUN([LYX_LIB_ERROR],[
  90 AC_MSG_ERROR([cannot find $1. Please check that the $2 library
  91    is correctly installed on your system.])])
  92
  93
  94 dnl Usage: LYX_CHECK_WARNINGS  Displays a warning message if a LYX_WARNING
  95 dnl   has occurred previously.
  96 AC_DEFUN([LYX_CHECK_WARNINGS],[
  97 if test x$lyx_warning = xyes; then
  98 cat <<EOF
  99 === The following minor problems have been detected by configure.
 100 === Please check the messages below before running 'make'.
 101 === (see the section 'Problems' in the INSTALL file)
 102 $lyx_warning_txt
 103
 104 EOF
 105 fi])
 106
 107
 108 dnl LYX_SEARCH_PROG(VARIABLE-NAME,PROGRAMS-LIST,ACTION-IF-FOUND)
 109 dnl
 110 define(LYX_SEARCH_PROG,[dnl
 111 for ac_prog in $2 ; do
 112 # Extract the first word of "$ac_prog", so it can be a program name with args.
 113   set dummy $ac_prog ; ac_word=$[2]
 114   if test -z "[$]$1"; then
 115     IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":"
 116     for ac_dir in $PATH; do
 117       test -z "$ac_dir" && ac_dir=.
 118       if test -f [$ac_dir/$ac_word]; then
 119         $1="$ac_prog"
 120         break
 121       fi
 122     done
 123     IFS="$ac_save_ifs"
 124   fi
 125
 126   if test -n "[$]$1"; then
 127     ac_result=yes
 128   else
 129     ac_result=no
 130   fi
 131   ifelse($3,,,[$3])
 132   test -n "[$]$1" && break
 133 done
 134 ])dnl
 135
 136
 137 dnl Usage: LYX_PROG_CLANG: set CLANG to yes if the compiler is clang.
 138 AC_DEFUN([LYX_PROG_CLANG],
 139 [AC_CACHE_CHECK([whether the compiler is clang],
 140                [lyx_cv_prog_clang],
 141 [AC_TRY_COMPILE([], [
 142 #ifndef __clang__
 143             this is not clang
 144 #endif
 145 ],
 146 [lyx_cv_prog_clang=yes ; CLANG=yes], [lyx_cv_prog_clang=no ; CLANG=no])])
 147 if test $CLANG = yes ; then
 148   AC_CACHE_CHECK([for clang version],
 149     [lyx_cv_clang_version],
 150     [clang_noversion=no
 151      AC_COMPUTE_INT(clang_major,__clang_major__,,[clang_noversion_=yes])
 152      AC_COMPUTE_INT(clang_minor,__clang_minor__,,[clang_noversion_=yes])
 153      AC_COMPUTE_INT(clang_patchlevel,__clang_patchlevel__,,[clang_noversion_=yes])
 154      if test $clang_noversion = yes ; then
 155        clang_version=unknown
 156      else
 157        clang_version=$clang_major.$clang_minor.$clang_patchlevel
 158      fi
 159      lyx_cv_clang_version=$clang_version])
 160 fi
 161 ])
 162
 163
 164 dnl Usage: LYX_CXX_CXX11_FLAGS: add to AM_CXXFLAGS the best flag that
 165 selects C++11 mode; gives an error when C++11 mode is not found.
 166 AC_DEFUN([LYX_CXX_CXX11_FLAGS],
 167 [AC_CACHE_CHECK([for at least C++11 mode], [lyx_cv_cxx11_flags],
 168  [lyx_cv_cxx11_flags=none
 169   for flag in -std=c++14 -std=c++11 "" -std=c++0x -std=gnu++14 -std=gnu++11 -std=gnu++0x ; do
 170     save_CPPFLAGS=$CPPFLAGS
 171     CPPFLAGS="$AM_CPPFLAGS $CPPFLAGS"
 172     save_CXXFLAGS=$CXXFLAGS
 173     CXXFLAGS="$flag $AM_CXXFLAGS $CXXFLAGS"
 174     dnl sample openmp source code to test
 175     AC_TRY_COMPILE([
 176        template <typename T>
 177        struct check
 178        {
 179            static_assert(sizeof(int) <= sizeof(T), "not big enough");
 180        };
 181
 182        typedef check<check<bool>> right_angle_brackets;
 183
 184        class TestDeleted
 185        {
 186        public:
 187            TestDeleted() = delete;
 188        };
 189
 190
 191        int a;
 192        decltype(a) b;
 193
 194        typedef check<int> check_type;
 195        check_type c;
 196        check_type&& cr = static_cast<check_type&&>(c);
 197
 198        auto d = a;], [],
 199     [lyx_cv_cxx11_flags=$flag; break])
 200    CXXFLAGS=$save_CXXFLAGS
 201    CPPFLAGS=$save_CPPFLAGS
 202   done])
 203   if test $lyx_cv_cxx11_flags = none ; then
 204     AC_ERROR([Cannot find suitable C++11 mode for compiler $CXX])
 205   fi
 206   AM_CXXFLAGS="$lyx_cv_cxx11_flags $AM_CXXFLAGS"
 207 ])
 208
 209
 210 dnl Usage: LYX_CXX_USE_REGEX
 211 dnl decide whether we want to use std::regex and set the
 212 dnl LYX_USE_STD_REGEX macro and conditional accordingly.
 213 AC_DEFUN([LYX_CXX_USE_REGEX],
 214 [AC_ARG_ENABLE(std-regex,
 215   AC_HELP_STRING([--enable-std-regex],[use std::regex instead of boost::regex (default is autodetected)]),
 216   [lyx_std_regex=$enableval],
 217   [AC_MSG_CHECKING([for correct regex implementation])
 218    save_CPPFLAGS=$CPPFLAGS
 219    CPPFLAGS="$AM_CPPFLAGS $CPPFLAGS"
 220    save_CXXFLAGS=$CXXFLAGS
 221    CXXFLAGS="$AM_CXXFLAGS $CXXFLAGS"
 222    # The following code snippet has been taken taken from example in
 223    #   http://stackoverflow.com/questions/8561850/compile-stdregex-iterator-with-gcc
 224    AC_TRY_LINK(
 225      [
 226         #include <regex>
 227         #include <iostream>
 228
 229         #include <string.h>
 230
 231         typedef std::regex_iterator<const char *> Myiter;
 232      ], [
 233         const char *pat = "axayaz";
 234         Myiter::regex_type rx("a");
 235         Myiter next(pat, pat + strlen(pat), rx);
 236         Myiter end;
 237    ], [lyx_std_regex=yes], [lyx_std_regex=no])
 238    CXXFLAGS=$save_CXXFLAGS
 239    CPPFLAGS=$save_CPPFLAGS
 240    AC_MSG_RESULT([$lyx_std_regex])
 241  ])
 242
 243  if test $lyx_std_regex = yes ; then
 244   lyx_flags="$lyx_flags std-regex"
 245   AC_DEFINE([LYX_USE_STD_REGEX], 1, [define to 1 if std::regex should be preferred to boost::regex])
 246  fi
 247  AM_CONDITIONAL([LYX_USE_STD_REGEX], test $lyx_std_regex = yes)
 248 ])
 249
 250
 251 dnl Usage: LYX_CXX_USE_CALL_ONCE
 252 dnl check whether we can use std::call_once and set the
 253 dnl LYX_USE_STD_CALL_ONCE macro and conditional accordingly.
 254 AC_DEFUN([LYX_CXX_USE_CALL_ONCE],
 255 [AC_MSG_CHECKING([for std::call_once availability])
 256    save_CPPFLAGS=$CPPFLAGS
 257    CPPFLAGS="$AM_CPPFLAGS $CPPFLAGS"
 258    save_CXXFLAGS=$CXXFLAGS
 259    CXXFLAGS="$AM_CXXFLAGS $CXXFLAGS"
 260    AC_TRY_LINK(
 261      [
 262         #include <mutex>
 263         static std::once_flag flag;
 264      ], [
 265         std::call_once(flag, [](){ return; });
 266    ], [lyx_std_call_once=yes], [lyx_std_call_once=no])
 267    CXXFLAGS=$save_CXXFLAGS
 268    CPPFLAGS=$save_CPPFLAGS
 269    AC_MSG_RESULT([$lyx_std_call_once])
 270
 271  if test $lyx_std_call_once = yes ; then
 272   AC_DEFINE([LYX_USE_STD_CALL_ONCE], 1, [define to 1 if std::call_once is supported by the compiler])
 273  fi
 274  AM_CONDITIONAL([LYX_USE_STD_CALL_ONCE], test $lyx_std_call_once = yes)
 275 ])
 276
 277
 278 dnl Usage: LYX_LIB_STDCXX: set lyx_cv_lib_stdcxx to yes if the STL library is libstdc++.
 279 AC_DEFUN([LYX_LIB_STDCXX],
 280 [AC_CACHE_CHECK([whether STL is libstdc++],
 281                [lyx_cv_lib_stdcxx],
 282 [AC_TRY_COMPILE([#include<vector>], [
 283 #if ! defined(__GLIBCXX__) && ! defined(__GLIBCPP__)
 284             this is not libstdc++
 285 #endif
 286 ],
 287 [lyx_cv_lib_stdcxx=yes], [lyx_cv_lib_stdcxx=no])])
 288 ])
 289
 290
 291 dnl Usage: LYX_LIB_STDCXX_CXX11_ABI: set lyx_cv_lib_stdcxx_cxx11_abi to yes
 292 dnl        if the STL library is GNU libstdc++ and the C++11 ABI is used.
 293 AC_DEFUN([LYX_LIB_STDCXX_CXX11_ABI],
 294 [AC_CACHE_CHECK([whether STL is libstdc++ using the C++11 ABI],
 295                [lyx_cv_lib_stdcxx_cxx11_abi],
 296 [AC_TRY_COMPILE([#include<vector>], [
 297 #if ! defined(_GLIBCXX_USE_CXX11_ABI) || ! _GLIBCXX_USE_CXX11_ABI
 298             this is not libstdc++ using the C++11 ABI
 299 #endif
 300 ],
 301 [lyx_cv_lib_stdcxx_cxx11_abi=yes], [lyx_cv_lib_stdcxx_cxx11_abi=no])])
 302 ])
 303
 304
 305 AC_DEFUN([LYX_PROG_CXX],
 306 [AC_REQUIRE([AC_PROG_CXX])
 307 AC_REQUIRE([AC_PROG_CXXCPP])
 308
 309 AC_LANG_PUSH(C++)
 310 LYX_PROG_CLANG
 311 LYX_CXX_CXX11_FLAGS
 312 LYX_LIB_STDCXX
 313 LYX_LIB_STDCXX_CXX11_ABI
 314 LYX_CXX_USE_REGEX
 315 LYX_CXX_USE_CALL_ONCE
 316 AC_LANG_POP(C++)
 317
 318 if test $lyx_cv_lib_stdcxx = "yes" ; then
 319   if test $lyx_cv_lib_stdcxx_cxx11_abi = "yes" ; then
 320     AC_DEFINE(USE_GLIBCXX_CXX11_ABI, 1, [use GNU libstdc++ with C++11 ABI])
 321   else
 322     AC_DEFINE(STD_STRING_USES_COW, 1, [std::string uses copy-on-write])
 323   fi
 324 else
 325   if test $lyx_cv_prog_clang = "yes" ; then
 326     AC_DEFINE(USE_LLVM_LIBCPP, 1, [use libc++ provided by llvm instead of GNU libstdc++])
 327   fi
 328 fi
 329
 330 ### We might want to get or shut warnings.
 331 AC_ARG_ENABLE(warnings,
 332   AC_HELP_STRING([--enable-warnings],[tell the compiler to display more warnings]),,
 333   [ if test $lyx_devel_version = yes -o $lyx_prerelease = yes && test $ac_cv_prog_gxx = yes ; then
 334         enable_warnings=yes;
 335     else
 336         enable_warnings=no;
 337     fi;])
 338 if test x$enable_warnings = xyes ; then
 339   lyx_flags="$lyx_flags warnings"
 340 fi
 341
 342 ### We might want to disable debug
 343 AC_ARG_ENABLE(debug,
 344   AC_HELP_STRING([--enable-debug],[enable debug information]),,
 345   [AS_CASE([$build_type], [rel*], [enable_debug=no], [enable_debug=yes])]
 346 )
 347
 348 AC_ARG_ENABLE(stdlib-debug,
 349   AC_HELP_STRING([--enable-stdlib-debug],[enable debug mode in the standard library]),,
 350   [AS_CASE([$build_type], [dev*], [enable_stdlib_debug=yes],
 351           [enable_stdlib_debug=no])]
 352 )
 353
 354 ### set up optimization
 355 AC_ARG_ENABLE(optimization,
 356     AC_HELP_STRING([--enable-optimization@<:@=ARG@:>@],[enable compiler optimisation]),,
 357     enable_optimization=yes;)
 358 case $enable_optimization in
 359     yes)
 360         if test $lyx_devel_version = yes ; then
 361             lyx_optim=-O
 362         else
 363             lyx_optim=-O2
 364         fi;;
 365     no) lyx_optim=;;
 366     *) lyx_optim=${enable_optimization};;
 367 esac
 368
 369 AC_ARG_ENABLE(assertions,
 370   AC_HELP_STRING([--enable-assertions],[add runtime sanity checks in the program]),,
 371   [AS_CASE([$build_type], [dev*|pre*], [enable_assertions=yes],
 372           [enable_assertions=no])]
 373 )
 374 if test "x$enable_assertions" = xyes ; then
 375    lyx_flags="$lyx_flags assertions"
 376    AC_DEFINE(ENABLE_ASSERTIONS,1,
 377     [Define if you want assertions to be enabled in the code])
 378 fi
 379
 380 # set the compiler options correctly.
 381 if test x$GXX = xyes; then
 382   dnl clang++ pretends to be g++ 4.2.1; this is not useful
 383   if test x$CLANG = xno; then
 384     dnl Useful for global version info
 385     gxx_version=`${CXX} -dumpversion`
 386     case $gxx_version in
 387         *.*) ;;
 388         *) gxx_version=`${CXX} -dumpfullversion` ;;
 389     esac
 390     CXX_VERSION="($gxx_version)"
 391   else
 392     gxx_version=clang-$clang_version
 393     CXX_VERSION="($clang_version)"
 394   fi
 395
 396   AM_CXXFLAGS="$lyx_optim $AM_CXXFLAGS"
 397   if test x$enable_debug = xyes ; then
 398       AM_CXXFLAGS="-g $AM_CXXFLAGS"
 399   fi
 400   if test $build_type = gprof ; then
 401     AM_CXXFLAGS="$AM_CXXFLAGS -pg"
 402     AM_LDFLAGS="$AM_LDFLAGS -pg"
 403   fi
 404   if test $build_type = profiling ; then
 405     AM_CXXFLAGS="$AM_CXXFLAGS -fno-omit-frame-pointer"
 406   fi
 407
 408   if test x$USE_QT5 = xyes ; then
 409       AS_CASE([$host], [*mingw*|*cygwin*], [], [AM_CXXFLAGS="-fPIC $AM_CXXFLAGS"])
 410   fi
 411   dnl Warnings are for preprocessor too
 412   if test x$enable_warnings = xyes ; then
 413       AM_CPPFLAGS="$AM_CPPFLAGS -Wall -Wextra"
 414       case $gxx_version in
 415           9.*|10.*|clang-10*)
 416               AM_CXXFLAGS="$AM_CXXFLAGS -Wno-deprecated-copy";;
 417           *);;
 418       esac
 419     fi
 420   case $gxx_version in
 421       2.*|3.*) AC_ERROR([gcc >= 4.6 is required]);;
 422       4.0*|4.1*|4.2*|4.3*|4.4*|4.5*) AC_ERROR([gcc >= 4.6 is required]);;
 423   esac
 424   if test x$enable_stdlib_debug = xyes ; then
 425     dnl FIXME: for clang/libc++, one should define _LIBCPP_DEBUG2=0
 426     dnl See http://clang-developers.42468.n3.nabble.com/libc-debug-mode-td3336742.html
 427     case $gxx_version in
 428       *)
 429         lyx_flags="$lyx_flags stdlib-debug"
 430         AC_DEFINE(_GLIBCXX_DEBUG, 1, [libstdc++ debug mode])
 431         AC_DEFINE(_GLIBCXX_DEBUG_PEDANTIC, 1, [libstdc++ pedantic debug mode])
 432         AC_SUBST(STDLIB_DEBUG, "-D_GLIBCXX_DEBUG -D_GLIBCXX_DEBUG_PEDANTIC")
 433         ;;
 434     esac
 435   fi
 436 fi
 437
 438 # Some additional flags may be needed
 439 if test x$GXX = xyes; then
 440     case $gxx_version in
 441       clang-3.0*|clang-3.1*|clang-3.2*|clang-3.3*)
 442         dnl boost contains pragmas that are annoying on older clang versions
 443         AM_CPPFLAGS="-Wno-unknown-pragmas $AM_CPPFLAGS";;
 444       clang*)
 445         dnl the more recent versions support the deprecated-register warning,
 446         dnl which  is very annoying with Qt4.x right now.
 447         AM_CXXFLAGS="$AM_CXXFLAGS -Wno-deprecated-register";;
 448     esac
 449 fi
 450 ])
 451
 452 dnl Usage: LYX_USE_INCLUDED_BOOST : select if the included boost should
 453 dnl        be used.
 454 AC_DEFUN([LYX_USE_INCLUDED_BOOST],[
 455         AC_MSG_CHECKING([whether to use included boost library])
 456         AC_ARG_WITH(included-boost,
 457             [AC_HELP_STRING([--without-included-boost], [do not use the boost lib supplied with LyX, try to find one in the system directories - compilation will abort if nothing suitable is found])],
 458             [lyx_cv_with_included_boost=$withval],
 459             [lyx_cv_with_included_boost=yes])
 460         AM_CONDITIONAL(USE_INCLUDED_BOOST, test x$lyx_cv_with_included_boost = xyes)
 461         AC_MSG_RESULT([$lyx_cv_with_included_boost])
 462         if test x$lyx_cv_with_included_boost = xyes ; then
 463             lyx_included_libs="$lyx_included_libs boost"
 464             BOOST_INCLUDES='-I$(top_srcdir)/3rdparty/boost'
 465             if test $lyx_std_regex = yes ; then
 466               BOOST_LIBS=""
 467             else
 468               BOOST_LIBS='$(top_builddir)/3rdparty/boost/liblyxboost.a'
 469             fi
 470         else
 471             BOOST_INCLUDES=
 472             if test $lyx_std_regex = yes ; then
 473               BOOST_LIBS=""
 474             else
 475               AC_LANG_PUSH(C++)
 476               save_LIBS=$LIBS
 477
 478               AC_MSG_CHECKING([for multithreaded boost libraries])
 479               LIBS="$save_LIBS -lboost_regex-mt $LIBTHREAD"
 480               AC_LINK_IFELSE(
 481                 [AC_LANG_PROGRAM([#include <boost/regex.hpp>],
 482                         [boost::regex reg;])],
 483                 [AC_MSG_RESULT([yes])
 484                  BOOST_MT="-mt"],
 485                 [AC_MSG_RESULT([no])
 486                  AC_MSG_CHECKING([for plain boost libraries])
 487                  LIBS="$save_LIBS -lboost_regex"
 488                  AC_LINK_IFELSE(
 489                      [AC_LANG_PROGRAM([#include <boost/regex.hpp>],
 490                              [boost::regex reg;])],
 491                      [AC_MSG_RESULT([yes])
 492                       BOOST_MT=""],
 493                      [AC_MSG_RESULT([no])
 494                       AC_MSG_ERROR([cannot find suitable boost library (do not use --without-included-boost)])
 495                  ])
 496               ])
 497               LIBS=$save_LIBS
 498               AC_LANG_POP(C++)
 499
 500               dnl In general, system boost libraries are incompatible with
 501               dnl the use of stdlib-debug in libstdc++. See ticket #9736 for
 502               dnl details.
 503               if test $enable_stdlib_debug = "yes" ; then
 504                 LYX_WARNING([Compiling LyX with stdlib-debug and system boost libraries may lead to
 505    crashes. Consider using --disable-stdlib-debug or removing
 506    --without-included-boost.])
 507               fi
 508
 509               BOOST_LIBS="-lboost_regex${BOOST_MT}"
 510             fi
 511         fi
 512         AC_SUBST(BOOST_INCLUDES)
 513         AC_SUBST(BOOST_LIBS)
 514 ])
 515
 516
 517 dnl Usage: LYX_USE_INCLUDED_ICONV : select if the included iconv should
 518 dnl        be used.
 519 AC_DEFUN([LYX_USE_INCLUDED_ICONV],[
 520   AC_MSG_CHECKING([whether to use included iconv library])
 521   AC_ARG_WITH(included-iconv,
 522     [AC_HELP_STRING([--with-included-iconv], [use the iconv lib supplied with LyX instead of the system one])],
 523     [lyx_cv_with_included_iconv=$withval],
 524     [lyx_cv_with_included_iconv=no])
 525   AM_CONDITIONAL(USE_INCLUDED_ICONV, test x$lyx_cv_with_included_iconv = xyes)
 526   AC_MSG_RESULT([$lyx_cv_with_included_iconv])
 527   if test x$lyx_cv_with_included_iconv = xyes ; then
 528   lyx_included_libs="$lyx_included_libs iconv"
 529
 530 dnl Some bits from libiconv configure.ac to avoid a nested configure call:
 531     AC_EILSEQ
 532     AC_TYPE_MBSTATE_T
 533     AC_CHECK_FUNCS([getc_unlocked mbrtowc wcrtomb mbsinit setlocale])
 534 dnl Ymbstate_t is used if HAVE_WCRTOMB || HAVE_MBRTOWC, see 3rdparty/libiconv/1.14/lib/loop_wchar.h.
 535     if test $ac_cv_func_wcrtomb = yes || test $ac_cv_func_mbrtowc = yes; then
 536       USE_MBSTATE_T=1
 537     else
 538       USE_MBSTATE_T=0
 539     fi
 540     AC_SUBST([USE_MBSTATE_T])
 541     AC_CACHE_CHECK([whether <wchar.h> is standalone],
 542       [gl_cv_header_wchar_h_standalone],
 543       [AC_COMPILE_IFELSE(
 544         [AC_LANG_PROGRAM(
 545           [[#include <wchar.h>
 546             wchar_t w;]],
 547           [[]])],
 548         [gl_cv_header_wchar_h_standalone=yes],
 549         [gl_cv_header_wchar_h_standalone=no])])
 550     if test $gl_cv_header_wchar_h_standalone = yes; then
 551       BROKEN_WCHAR_H=0
 552     else
 553       BROKEN_WCHAR_H=1
 554     fi
 555     AC_SUBST([BROKEN_WCHAR_H])
 556 dnl we want const correctness
 557     AC_DEFINE_UNQUOTED([ICONV_CONST], [const],
 558       [Define as const if the declaration of iconv() needs const.])
 559     ICONV_CONST=const
 560     AC_SUBST([ICONV_CONST])
 561 dnl we build a static lib
 562     DLL_VARIABLE=
 563     AC_SUBST([DLL_VARIABLE])
 564     ICONV_INCLUDES='-I$(top_srcdir)/3rdparty/libiconv/1.14 -I$(top_builddir)/3rdparty/libiconv'
 565     ICONV_LIBS='\$(top_builddir)/3rdparty/libiconv/liblyxiconv.a'
 566     ICONV_ICONV_H_IN=3rdparty/libiconv/iconv.h:3rdparty/libiconv/1.14/include/iconv.h.in
 567   else
 568     ICONV_INCLUDES=
 569     AM_ICONV
 570     if test "$am_cv_func_iconv" = no; then
 571       AC_MSG_ERROR([cannot find required library iconv.])
 572     else
 573       ICONV_LIBS="$LIBICONV"
 574     fi
 575     ICONV_ICONV_H_IN=
 576   fi
 577   AC_SUBST(ICONV_INCLUDES)
 578   AC_SUBST(ICONV_LIBS)
 579   AC_SUBST(ICONV_ICONV_H_IN)
 580 ])
 581
 582
 583 dnl Usage: LYX_USE_INCLUDED_ZLIB : select if the included zlib should
 584 dnl        be used.
 585 AC_DEFUN([LYX_USE_INCLUDED_ZLIB],[
 586   AC_MSG_CHECKING([whether to use included zlib library])
 587   AC_ARG_WITH(included-zlib,
 588     [AC_HELP_STRING([--with-included-zlib], [use the zlib lib supplied with LyX instead of the system one])],
 589     [lyx_cv_with_included_zlib=$withval],
 590     [lyx_cv_with_included_zlib=no])
 591   AM_CONDITIONAL(USE_INCLUDED_ZLIB, test x$lyx_cv_with_included_zlib = xyes)
 592   AC_MSG_RESULT([$lyx_cv_with_included_zlib])
 593   if test x$lyx_cv_with_included_zlib = xyes ; then
 594     lyx_included_libs="$lyx_included_libs zlib"
 595     ZLIB_INCLUDES='-I$(top_srcdir)/3rdparty/zlib/1.2.8 -I$(top_builddir)/3rdparty/zlib'
 596     ZLIB_LIBS='$(top_builddir)/3rdparty/zlib/liblyxzlib.a'
 597     mkdir -p 3rdparty/zlib
 598 dnl include standard config.h for HAVE_UNISTD_H
 599     echo "#include <../../config.h>" > 3rdparty/zlib/zconf.h
 600 dnl prevent clash with system zlib that might be dragged in by other libs
 601     echo "#define Z_PREFIX 1" >> 3rdparty/zlib/zconf.h
 602     cat "${srcdir}/3rdparty/zlib/1.2.8/zconf.h.in" >> 3rdparty/zlib/zconf.h
 603   else
 604     ZLIB_INCLUDES=
 605     AC_CHECK_HEADERS(zlib.h,
 606       [AC_CHECK_LIB(z, gzopen, [ZLIB_LIBS="-lz"], LYX_LIB_ERROR(libz,zlib))],
 607       [LYX_LIB_ERROR(zlib.h,zlib)])
 608   fi
 609   AC_SUBST(ZLIB_INCLUDES)
 610   AC_SUBST(ZLIB_LIBS)
 611 ])
 612
 613
 614 dnl Usage: LYX_CHECK_CALLSTACK_PRINTING: define LYX_CALLSTACK_PRINTING if the
 615 dnl        necessary APIs are available to print callstacks.
 616 AC_DEFUN([LYX_CHECK_CALLSTACK_PRINTING],
 617 [AC_CACHE_CHECK([whether printing callstack is possible],
 618                [lyx_cv_callstack_printing],
 619 [AC_TRY_COMPILE([
 620 #include <execinfo.h>
 621 #include <cxxabi.h>
 622 ], [
 623         void* array[200];
 624         size_t size = backtrace(array, 200);
 625         backtrace_symbols(array, size);
 626         int status = 0;
 627         abi::__cxa_demangle("abcd", 0, 0, &status);
 628 ],
 629 [lyx_cv_callstack_printing=yes], [lyx_cv_callstack_printing=no])])
 630 if test x"$lyx_cv_callstack_printing" = xyes; then
 631   AC_DEFINE([LYX_CALLSTACK_PRINTING], 1,
 632             [Define if callstack can be printed])
 633 fi
 634 ])
 635
 636
 637 dnl Usage: LYX_USE_INCLUDED_MYTHES : select if the included MyThes should
 638 dnl        be used.
 639 AC_DEFUN([LYX_USE_INCLUDED_MYTHES],[
 640   AC_ARG_WITH(included-mythes,
 641     [AC_HELP_STRING([--with-included-mythes], [force to use the MyThes lib supplied with LyX])],
 642     [use_included_mythes=$withval],
 643     [use_included_mythes=no])
 644   if test x$use_included_mythes != xyes ; then
 645     AC_LANG_PUSH(C++)
 646     use_included_mythes=yes
 647     AC_CHECK_HEADERS([mythes.hxx mythes/mythes.hxx],
 648       [mythes_h_location="<$ac_header>"
 649        save_LIBS=$LIBS
 650        AC_MSG_CHECKING([checking for MyThes library])
 651        for ac_lib in mythes mythes-1.2 ; do
 652          LIBS="-l$ac_lib $save_LIBS"
 653          AC_LINK_IFELSE(
 654            [AC_LANG_PROGRAM([#include <cstdio>]
 655               [#include $mythes_h_location], [MyThes dummy("idx","dat")])],
 656            [MYTHES_LIBS=-l$ac_lib
 657             AC_MSG_RESULT([$MYTHES_LIBS])
 658             use_included_mythes=no])
 659        done
 660        if test $use_included_mythes != no ; then
 661          AC_MSG_RESULT([not found])
 662        fi
 663        break])
 664     AC_LANG_POP(C++)
 665   fi
 666   if test $use_included_mythes = yes ; then
 667     mythes_h_location="<mythes.hxx>"
 668     MYTHES_INCLUDES='-I$(top_srcdir)/3rdparty/mythes/1.2.5/'
 669     MYTHES_LIBS='$(top_builddir)/3rdparty/mythes/liblyxmythes.a'
 670     lyx_included_libs="$lyx_included_libs mythes"
 671   fi
 672   AM_CONDITIONAL(USE_INCLUDED_MYTHES, test x$use_included_mythes = xyes)
 673   AC_DEFINE_UNQUOTED(MYTHES_H_LOCATION,$mythes_h_location,[Location of mythes.hxx])
 674   AC_SUBST(MYTHES_INCLUDES)
 675   AC_SUBST(MYTHES_LIBS)
 676   AC_MSG_CHECKING([whether to use included MyThes library])
 677   AC_MSG_RESULT([$use_included_mythes])
 678 ])
 679
 680
 681 dnl Usage: LYX_WITH_DIR(dir-name,desc,dir-var-name,default-value,
 682 dnl                       [default-yes-value])
 683 dnl  Adds a --with-'dir-name' option (described by 'desc') and puts the
 684 dnl  resulting directory name in 'dir-var-name'.
 685 AC_DEFUN([LYX_WITH_DIR],[
 686   AC_ARG_WITH($1,[AC_HELP_STRING([--with-$1],[specify $2])])
 687   AC_MSG_CHECKING([for $2])
 688   if test -z "$with_$3"; then
 689      AC_CACHE_VAL(lyx_cv_$3, lyx_cv_$3=$4)
 690   else
 691     test "x$with_$3" = xyes && with_$3=$5
 692     lyx_cv_$3="$with_$3"
 693   fi
 694   AC_MSG_RESULT($lyx_cv_$3)
 695 ])
 696
 697
 698 dnl Usage: LYX_LOOP_DIR(value,action)
 699 dnl Executes action for values of variable `dir' in `values'. `values' can
 700 dnl use ":" as a separator.
 701 AC_DEFUN([LYX_LOOP_DIR],[
 702 IFS="${IFS=     }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
 703 for dir in `eval "echo $1"`; do
 704   if test ! "$dir" = NONE; then
 705     test ! -d "$dir" && AC_MSG_ERROR([\"$dir\" is not a directory])
 706     $2
 707   fi
 708 done
 709 IFS=$ac_save_ifs
 710 ])
 711
 712
 713 dnl Usage: LYX_ADD_LIB_DIR(var-name,dir) Adds a -L directive to variable
 714 dnl var-name.
 715 AC_DEFUN([LYX_ADD_LIB_DIR],[
 716 $1="${$1} -L$2"
 717 if test "`(uname) 2>/dev/null`" = SunOS &&
 718     uname -r | grep '^5' >/dev/null; then
 719   if test $ac_cv_prog_gxx = yes ; then
 720     $1="${$1} -Wl[,]-R$2"
 721   else
 722     $1="${$1} -R$2"
 723   fi
 724 fi])
 725
 726
 727 dnl Usage: LYX_ADD_INC_DIR(var-name,dir) Adds a -I directive to variable
 728 dnl var-name.
 729 AC_DEFUN([LYX_ADD_INC_DIR],[$1="${$1} -I$2 "])
 730
 731 ### Check for a headers existence and location iff it exists
 732 ## This is supposed to be a generalised version of LYX_STL_STRING_FWD
 733 ## It almost works.  I've tried a few variations but they give errors
 734 ## of one sort or other: bad substitution or file not found etc.  The
 735 ## actual header _is_ found though and the cache variable is set however
 736 ## the reported setting (on screen) is equal to $ac_safe for some unknown
 737 ## reason.
 738 ## Additionally, autoheader can't figure out what to use as the name in
 739 ## the config.h.in file so we need to write our own entries there -- one for
 740 ## each header in the form PATH_HEADER_NAME_H
 741 ##
 742 AC_DEFUN([LYX_PATH_HEADER],
 743 [ AC_CHECK_HEADER($1,[
 744   ac_tr_safe=PATH_`echo $ac_safe | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'`
 745 ### the only remaining problem is getting the second parameter to this
 746 ### AC_CACHE_CACHE to print correctly. Currently it just results in value
 747 ### of $ac_safe being printed.
 748   AC_CACHE_CHECK([path to $1],[lyx_cv_path2_$ac_safe],
 749   [ cat > conftest.$ac_ext <<EOF
 750 #line __oline__ "configure"
 751 #include "confdefs.h"
 752
 753 #include <$1>
 754 EOF
 755 lyx_path_header_path=`(eval "$ac_cpp conftest.$ac_ext") 2>&5 | \
 756   grep $1  2>/dev/null | \
 757   sed -e 's/.*\(".*$1"\).*/\1/' -e "1q"`
 758 eval "lyx_cv_path2_${ac_safe}=\$lyx_path_header_path"
 759 rm -f conftest*])
 760   AC_DEFINE_UNQUOTED($ac_tr_safe, $lyx_path_header_path, [dummy])])
 761 ])
 762 ### end of LYX_PATH_HEADER
 763
 764 ## Check what kind of packaging should be used at install time.
 765 ## The default is autodetected.
 766 AC_DEFUN([LYX_USE_PACKAGING],
 767 [AC_MSG_CHECKING([what packaging should be used])
 768 AC_ARG_WITH(packaging,
 769   [AC_HELP_STRING([--with-packaging=STR], [set packaging for installation among:
 770                             posix, windows, macosx, haiku (default is autodetected)])],
 771   [lyx_use_packaging="$withval"], [
 772   case $host in
 773     *-apple-darwin*) lyx_use_packaging=macosx ;;
 774     *-pc-mingw*) lyx_use_packaging=windows ;;
 775     *-mingw32*) lyx_use_packaging=windows ;;
 776     *haiku*) lyx_use_packaging=haiku ;;
 777     *) lyx_use_packaging=posix ;;
 778   esac])
 779 AC_MSG_RESULT($lyx_use_packaging)
 780 lyx_install_posix=false
 781 lyx_install_macosx=false
 782 lyx_install_cygwin=false
 783 lyx_install_windows=false
 784 case $lyx_use_packaging in
 785    macosx) AC_DEFINE(USE_MACOSX_PACKAGING, 1, [Define to 1 if LyX should use a MacOS X application bundle file layout])
 786            PACKAGE=LyX${version_suffix}
 787            default_prefix="/Applications/${PACKAGE}.app"
 788            AC_SUBST(osx_bundle_program_name,"${program_base_name}")
 789            bindir='${prefix}/Contents/MacOS'
 790            libdir='${prefix}/Contents/Resources'
 791            datarootdir='${prefix}/Contents/Resources'
 792            pkgdatadir='${datadir}'
 793            mandir='${datadir}/man'
 794            lyx_install_macosx=true ;;
 795   windows) AC_DEFINE(USE_WINDOWS_PACKAGING, 1, [Define to 1 if LyX should use a Windows-style file layout])
 796            PACKAGE=LyX${version_suffix}
 797            default_prefix="C:/Program Files/${PACKAGE}"
 798            bindir='${prefix}/bin'
 799            libdir='${prefix}/Resources'
 800            datarootdir='${prefix}/Resources'
 801            pkgdatadir='${datadir}'
 802            mandir='${prefix}/Resources/man'
 803            lyx_install_windows=true ;;
 804     posix) AC_DEFINE(USE_POSIX_PACKAGING, 1, [Define to 1 if LyX should use a POSIX-style file layout])
 805            PACKAGE=lyx${version_suffix}
 806            program_suffix=$version_suffix
 807            pkgdatadir='${datadir}/${PACKAGE}'
 808            default_prefix=$ac_default_prefix
 809            case ${host} in
 810              *cygwin*) lyx_install_cygwin=true ;;
 811              *apple-darwin*) lyx_install_macosx=true ;;
 812            esac
 813            lyx_install_posix=true ;;
 814         haiku) AC_DEFINE(USE_HAIKU_PACKAGING, 1, [Define to 1 if LyX should use a Haiku-style file layout])
 815            PACKAGE=lyx${version_suffix}
 816            program_suffix=$version_suffix
 817            pkgdatadir='${datadir}/${PACKAGE}'
 818            default_prefix=$ac_default_prefix
 819            lyx_install_posix=true ;;
 820     *) AC_MSG_ERROR([unknown packaging type $lyx_use_packaging.]) ;;
 821 esac
 822 AM_CONDITIONAL(INSTALL_MACOSX, $lyx_install_macosx)
 823 AM_CONDITIONAL(INSTALL_WINDOWS, $lyx_install_windows)
 824 AM_CONDITIONAL(INSTALL_CYGWIN, $lyx_install_cygwin)
 825 AM_CONDITIONAL(INSTALL_POSIX, $lyx_install_posix)
 826 AC_SUBST(pkgdatadir)
 827 AC_SUBST(program_suffix)
 828 ])
 829
 830
 831 ## ------------------------------------------------------------------------
 832 ## Check whether mkdir() is mkdir or _mkdir, and whether it takes
 833 ## one or two arguments.
 834 ##
 835 ## http://ac-archive.sourceforge.net/C_Support/ac_func_mkdir.html
 836 ## ------------------------------------------------------------------------
 837 ##
 838 AC_DEFUN([AC_FUNC_MKDIR],
 839 [AC_CHECK_FUNCS([mkdir _mkdir])
 840 AC_CACHE_CHECK([whether mkdir takes one argument],
 841                [ac_cv_mkdir_takes_one_arg],
 842 [AC_TRY_COMPILE([
 843 #include <sys/stat.h>
 844 #if HAVE_UNISTD_H
 845 #  include <unistd.h>
 846 #endif
 847 ], [mkdir (".");],
 848 [ac_cv_mkdir_takes_one_arg=yes], [ac_cv_mkdir_takes_one_arg=no])])
 849 if test x"$ac_cv_mkdir_takes_one_arg" = xyes; then
 850   AC_DEFINE([MKDIR_TAKES_ONE_ARG], 1,
 851             [Define if mkdir takes only one argument.])
 852 fi
 853 ])
 854
 855
 856 dnl Set VAR to the canonically resolved absolute equivalent of PATHNAME,
 857 dnl (which may be a relative path, and need not refer to any existing
 858 dnl entity).
 859
 860 dnl On Win32-MSYS build hosts, the returned path is resolved to its true
 861 dnl native Win32 path name, (but with slashes, not backslashes).
 862
 863 dnl On any other system, it is simply the result which would be obtained
 864 dnl if PATHNAME represented an existing directory, and the pwd command was
 865 dnl executed in that directory.
 866 AC_DEFUN([MSYS_AC_CANONICAL_PATH],
 867 [ac_dir="$2"
 868  ( exec 2>/dev/null; cd / && pwd -W ) | grep ':' >/dev/null &&
 869     ac_pwd_w="pwd -W" || ac_pwd_w=pwd
 870  until ac_val=`exec 2>/dev/null; cd "$ac_dir" && $ac_pwd_w`
 871  do
 872    ac_dir=`AS_DIRNAME(["$ac_dir"])`
 873  done
 874  ac_dir=`echo "$ac_dir" | sed 's?^[[./]]*??'`
 875  ac_val=`echo "$ac_val" | sed 's?/*$[]??'`
 876  $1=`echo "$2" | sed "s?^[[./]]*$ac_dir/*?$ac_val/?"'
 877    s?/*$[]??'`
 878 ])
 879
 880 dnl this is used by the macro blow to general a proper config.h.in entry
 881 m4_define([LYX_AH_CHECK_DECL],
 882 [AH_TEMPLATE(AS_TR_CPP(HAVE_DECL_$1),
 883   [Define if you have the prototype for function `$1'])])dnl`
 884
 885 dnl Check things are declared in headers to avoid errors or warnings.
 886 dnl Called like LYX_CHECK_DECL(function, header1 header2...)
 887 dnl Defines HAVE_DECL_{FUNCTION}
 888 AC_DEFUN([LYX_CHECK_DECL],
 889 [LYX_AH_CHECK_DECL($1)
 890 for ac_header in $2
 891 do
 892   AC_MSG_CHECKING([if $1 is declared by header $ac_header])
 893   AC_EGREP_HEADER($1, $ac_header,
 894       [AC_MSG_RESULT(yes)
 895        AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_DECL_$1))
 896        break],
 897       [AC_MSG_RESULT(no)])
 898 done])
 899
 900 dnl this is used by the macro below to generate a proper config.h.in entry
 901 m4_define([LYX_AH_CHECK_DEF],
 902 [AH_TEMPLATE(AS_TR_CPP(HAVE_DEF_$1),
 903   [Define to 1 if `$1' is defined in `$2'])])dnl'
 904
 905 dnl Check whether name is defined in header by using it in codesnippet.
 906 dnl Called like LYX_CHECK_DEF(name, header, codesnippet)
 907 dnl Defines HAVE_DEF_{NAME}
 908 AC_DEFUN([LYX_CHECK_DEF],
 909 [LYX_AH_CHECK_DEF($1, $2)
 910  AC_MSG_CHECKING([whether $1 is defined by header $2])
 911  save_CPPFLAGS=$CPPFLAGS
 912  CPPFLAGS="$AM_CPPFLAGS $CPPFLAGS"
 913  save_CXXFLAGS=$CXXFLAGS
 914  CXXFLAGS="$AM_CXXFLAGS $CXXFLAGS"
 915  AC_LANG_PUSH(C++)
 916  AC_TRY_COMPILE([#include <$2>], [$3],
 917      lyx_have_def_name=yes,
 918      lyx_have_def_name=no)
 919  AC_LANG_POP(C++)
 920  CXXFLAGS=$save_CXXFLAGS
 921  CPPFLAGS=$save_CPPFLAGS
 922  AC_MSG_RESULT($lyx_have_def_name)
 923  if test "x$lyx_have_def_name" = xyes; then
 924    AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_DEF_$1))
 925  fi
 926 ])
 927
 928 dnl Extract the single digits from PACKAGE_VERSION and make them available.
 929 dnl Defines LYX_MAJOR_VERSION, LYX_MINOR_VERSION, LYX_RELEASE_LEVEL,
 930 dnl LYX_RELEASE_PATCH (possibly equal to 0), LYX_DIR_VER, and LYX_USERDIR_VER.
 931 AC_DEFUN([LYX_SET_VERSION_INFO],
 932 [lyx_major=`echo $PACKAGE_VERSION | sed -e 's/[[.]].*//'`
 933  lyx_patch=`echo $PACKAGE_VERSION | sed -e "s/^$lyx_major//" -e 's/^.//'`
 934  lyx_minor=`echo $lyx_patch | sed -e 's/[[.]].*//'`
 935  lyx_patch=`echo $lyx_patch | sed -e "s/^$lyx_minor//" -e 's/^.//'`
 936  lyx_release=`echo $lyx_patch | sed -e 's/[[^0-9]].*//'`
 937  lyx_patch=`echo $lyx_patch | sed -e "s/^$lyx_release//" -e 's/^[[.]]//' -e 's/[[^0-9]].*//'`
 938  test "x$lyx_patch" = "x" && lyx_patch=0
 939  lyx_dir_ver=LYX_DIR_${lyx_major}${lyx_minor}x
 940  lyx_userdir_ver=LYX_USERDIR_${lyx_major}${lyx_minor}x
 941  AC_SUBST(LYX_MAJOR_VERSION,$lyx_major)
 942  AC_SUBST(LYX_MINOR_VERSION,$lyx_minor)
 943  AC_SUBST(LYX_RELEASE_LEVEL,$lyx_release)
 944  AC_SUBST(LYX_RELEASE_PATCH,$lyx_patch)
 945  AC_SUBST(LYX_DIR_VER,"$lyx_dir_ver")
 946  AC_SUBST(LYX_USERDIR_VER,"$lyx_userdir_ver")
 947 ])
 948